Tamara's Chocolate Chip Cookies

1/2 cup softened butter
1/2 cup shortening
3/4 cup sugar
3/4 cup brown sugar
1 teaspoon salt
1 teaspoon baking soda
2 eggs
1 teaspoon vanilla
2 3/8 cup flour
18 ounces semi-sweet chocolate chips

Cream butter, shortening, brown sugar, and white sugar.
Add salt and baking soda, cream.
Add eggs and vanilla, cream.
Add flour, mix.
Add chocolate chips and walnuts, mix.
Spoon golf-ball-sized pieces of dough onto an ungreased cookie sheet.
Bake at 375 ° for 8-10 minutes.